What Happens If The Bimetallic Terminal Blocks In An Electrical Connection Are Not Wired Correctly?

In industrial settings and equipment assembly processes, the wiring operations of bimetallic lugs are often affected by factors such as the installation environment, tool selection, and operator proficiency. Since bi metal cable lug is used to connect wires made of different materials, its structure is designed to accommodate two metal interfaces. If the metal contact area is not treated, wires are not inserted and tightened in accordance with the specifications during the wiring process, phenomena such as incomplete contact surfaces and gaps between bi metal lugs connectors and the wires may occur.

bi metallic cable lugs should ensure that the metal interface is clean and free of oxide layer, and match the correct size wire according to the type of bimetal cable lug. If the wire is not correctly positioned or the fastener torque is improper, the actual bearing area of ​​the metal contact surface will be insufficient, leading to increased local resistance and potentially heat accumulation. This heat accumulation, under prolonged current flow, can cause localized oxidation and even mechanical deformation at the contact points, accelerating the degradation of the connector's performance.